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authorAl Viro <viro@zeniv.linux.org.uk>2016-03-01 21:35:06 +0100
committerAl Viro <viro@zeniv.linux.org.uk>2016-03-14 05:16:33 +0100
commit9d95afd5971918b1aa8db1960ba24532c2d6ec89 (patch)
treecf6a14f2ced8ad73c955dd5d9700df4795f12060 /fs/namei.c
parentceph_fill_trace(): don't bother with d_instantiate(dn, NULL) (diff)
downloadlinux-9d95afd5971918b1aa8db1960ba24532c2d6ec89.tar.xz
linux-9d95afd5971918b1aa8db1960ba24532c2d6ec89.zip
kill dentry_unhash()
the last user is gone Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/namei.c')
-rw-r--r--fs/namei.c25
1 files changed, 0 insertions, 25 deletions
diff --git a/fs/namei.c b/fs/namei.c
index dbb8ec1a2006..794f81dce766 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -3685,31 +3685,6 @@ SYSCALL_DEFINE2(mkdir, const char __user *, pathname, umode_t, mode)
return sys_mkdirat(AT_FDCWD, pathname, mode);
}
-/*
- * The dentry_unhash() helper will try to drop the dentry early: we
- * should have a usage count of 1 if we're the only user of this
- * dentry, and if that is true (possibly after pruning the dcache),
- * then we drop the dentry now.
- *
- * A low-level filesystem can, if it choses, legally
- * do a
- *
- * if (!d_unhashed(dentry))
- * return -EBUSY;
- *
- * if it cannot handle the case of removing a directory
- * that is still in use by something else..
- */
-void dentry_unhash(struct dentry *dentry)
-{
- shrink_dcache_parent(dentry);
- spin_lock(&dentry->d_lock);
- if (dentry->d_lockref.count == 1)
- __d_drop(dentry);
- spin_unlock(&dentry->d_lock);
-}
-EXPORT_SYMBOL(dentry_unhash);
-
int vfs_rmdir(struct inode *dir, struct dentry *dentry)
{
int error = may_delete(dir, dentry, 1);